Hello kid after a couple of years of not touching anything in Oracle's PL / SQL. I have to touch it a little to remember. install the ORACLE sql devolper.
BEGIN
dbms_output.put_line('HOLAAAAAAAAAAA');
END;
But in the output DBMS does not print. I searched through Google and followed everything I found. Running: Set serveroutput on. and it does not print output in DBMS either The connection with the + symbol in DBMS output with the same name as the connection has been chosen.
I give you a screenshot. 